package inter; // Arquivo Do.java
import symbols.*;

public class Do extends Stmt {
	Expr expr; Stmt stmt;
	public Do() { expr = null; stmt = null; }
	
	public void init(Stmt s, Expr x) {
		expr = x; stmt = s;
		if( expr.type != Type.Bool ) expr.error("boolean required in do");
	}
	
	public void gen(int b, int a) {
		after = a;
		int label = newlabel(); // rotulo para expr
		stmt.gen(b,label);
		emitlabel(label);
		expr.jumping(b,0);
	}
}